Sa A Wang,Leonor Arenillas,Francesco Buccisano,Monika Bruggemann,Wolfgang Kern,Manuel Menes,Adriana Plesa,Louisa Stone,Dominique Wellnitz,David A Westerman,Brent L Wood,Sylvie D Freeman
{"title":"Reporting blast percentage for response assessment in acute leukemias: recommendations from an EHA/ELN expert panel.","authors":"Sa A Wang,Leonor Arenillas,Francesco Buccisano,Monika Bruggemann,Wolfgang Kern,Manuel Menes,Adriana Plesa,Louisa Stone,Dominique Wellnitz,David A Westerman,Brent L Wood,Sylvie D Freeman","doi":"10.3324/haematol.2025.288228","DOIUrl":null,"url":null,"abstract":"Evaluation of bone marrow blast percentage is paramount to response criteria in acute leukemias. There is an identified need within the framework of updated laboratory practices to reduce inconsistencies in methodologies used by clinical laboratories to report blast values and clarify aspects of reporting. Representatives from international specialised working groups including the European Hematology Association (EHA) Diagnosis in Hematological Diseases Specialised Working Group and the European LeukemiaNet (ELN) produced consensus guidance for harmonised blast assessment to define response categories in acute leukemic patients. These address sampling best practice, key considerations for generating the most accurate blast enumeration and the limitations across the methodologies in acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML) and acute leukemia of ambiguous lineage. An integrated reporting scheme for deriving blast percentage is provided for ALL and AML. This incorporates results from appropriate measurable residual disease assays with morphological crosscheck. The practical guide and approach presented herein should facilitate uniform reporting standards both within clinical trials and in broader clinical practice.","PeriodicalId":12964,"journal":{"name":"Haematologica","volume":"47 1","pages":""},"PeriodicalIF":7.9000,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Haematologica","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3324/haematol.2025.288228","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"HEMATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Evaluation of bone marrow blast percentage is paramount to response criteria in acute leukemias. There is an identified need within the framework of updated laboratory practices to reduce inconsistencies in methodologies used by clinical laboratories to report blast values and clarify aspects of reporting. Representatives from international specialised working groups including the European Hematology Association (EHA) Diagnosis in Hematological Diseases Specialised Working Group and the European LeukemiaNet (ELN) produced consensus guidance for harmonised blast assessment to define response categories in acute leukemic patients. These address sampling best practice, key considerations for generating the most accurate blast enumeration and the limitations across the methodologies in acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML) and acute leukemia of ambiguous lineage. An integrated reporting scheme for deriving blast percentage is provided for ALL and AML. This incorporates results from appropriate measurable residual disease assays with morphological crosscheck. The practical guide and approach presented herein should facilitate uniform reporting standards both within clinical trials and in broader clinical practice.
期刊介绍:
Haematologica is a journal that publishes articles within the broad field of hematology. It reports on novel findings in basic, clinical, and translational research.
Scope:
The scope of the journal includes reporting novel research results that:
Have a significant impact on understanding normal hematology or the development of hematological diseases.
Are likely to bring important changes to the diagnosis or treatment of hematological diseases.